全文获取类型
收费全文 | 279篇 |
免费 | 1篇 |
专业分类
公路运输 | 39篇 |
综合类 | 8篇 |
水路运输 | 98篇 |
铁路运输 | 4篇 |
综合运输 | 131篇 |
出版年
2021年 | 2篇 |
2020年 | 3篇 |
2019年 | 5篇 |
2018年 | 4篇 |
2017年 | 12篇 |
2016年 | 10篇 |
2015年 | 5篇 |
2014年 | 7篇 |
2013年 | 49篇 |
2012年 | 14篇 |
2011年 | 15篇 |
2010年 | 13篇 |
2009年 | 9篇 |
2008年 | 15篇 |
2007年 | 6篇 |
2006年 | 9篇 |
2005年 | 4篇 |
2004年 | 6篇 |
2003年 | 10篇 |
2002年 | 8篇 |
2001年 | 4篇 |
2000年 | 7篇 |
1999年 | 5篇 |
1998年 | 3篇 |
1997年 | 7篇 |
1996年 | 5篇 |
1995年 | 4篇 |
1994年 | 1篇 |
1993年 | 4篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1989年 | 4篇 |
1988年 | 1篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1983年 | 5篇 |
1982年 | 4篇 |
1981年 | 1篇 |
1979年 | 3篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 4篇 |
1973年 | 2篇 |
1972年 | 1篇 |
排序方式: 共有280条查询结果,搜索用时 15 毫秒
201.
Michael J.Dunne 《汽车与配件》2007,(28):27-27
谈到影响汽车消费的因素。中美消费者之间存在许多有趣的相似之处。只要在预算范围内,他们无疑都喜欢更大更宽敞的车型。和美国车主一样,中国车主也更倾向于汽油发动机,而不是柴油发动机。(据统计,在这两个国家。柴油版汽车只占整个乘用车市场销量的不到3%。) 相似文献
202.
Agnieszka Walenciak Anna-Marie Constantinou Michael Roe 《Maritime Policy and Management》2013,40(4):323-337
This paper provides an analysis of the development of the liner route between the UK and Poland and the activities of the two main operators—EuroAfrica of Poland and United Baltic Corporation of London. The most significant factors driving the development of this trade are analysed using a combination of an industrial survey and government statistics for the route, before going on to examine the threat to the trade presented by the growth of the trucking mode. 相似文献
203.
Michael Everard 《Maritime Policy and Management》2013,40(2):91-92
There are numerous possible advantages to be gained from the accurate prediction of future movements in the Baltic Freight Index (BFI). Because of the difficulties inherent in long-range forecasting, however, the potential for such predictions to provide insight into the future state of the physical dry bulk market is perhaps limited. The greater accuracy of short-term forecasts, on the other hand, facilitates the development of a forecasting model form is justified by the inevitably continuous nature of futures market speculation. Such a model is developed through the application of the Box—Jenkins approach to time series analysis and forecasting. The methodology is presented and the resulting model is evaluated on the basis of objective measures of predictive power and by comparison with alternative forecasting models. Finally, the applicability of the model to the practice of BIFFEX speculation is assessed by judging its performance within a simulated BIFFEX trading environment. 相似文献
204.
Michael G H Bell 《先进运输杂志》1999,33(2):135-146
Despite the importance of assessing the reliability of transport networks in general there is a paucity of suitable techniques. In part this is due to the fact that network performance depends both on the state of the infrastructure and on the behaviour of network users, where user behaviour is governed by expectations about the state of the network. An approach based on game theory is proposed whereby the performance of the network is estimated for the case where network users are extremely pessimistic about the state of the network. Where the routes are prespecified and route utilities depend only on exogenously given scenarios, the estimation problem may be formulated as a linear program. A reformulation of the problem as a non-linear program allows the impact of the degree of user pessimism on expected network utility to be studied. The problems of implementing the method for large networks with multiple origins and destinations is discussed and an algorithm is proposed. 相似文献
205.
最近,对铁道车辆防火条例进行了大量改动。由于欧洲防火标准要统一,相比个别国家标准例如DIN5510,对防火文件和列车零部件质量做出了额外要求。 相似文献
206.
Michael W. Sayers 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1999,32(4):421-438
A vehicle system dynamics model is presented that captures the essential braking and handling behavior of a passenger car and runs faster than real-time on a 1998 Pentium 233 MHz laptop computer. The simulation code was generated with the AutoSim multibody code generator and linked with C functions that communicate with braking hardware to create a real-time simulation (RTS) with hardware in the loop (HITL). Techniques are described that were used to allow the simulation program to work with HITL. The model (without controller) was also integrated with the Simulink environment to provide a design tool for control engineers. 相似文献
207.
Meng Li Michael Khonsari Ruzhou Yang 《International Journal of Automotive Technology》2018,19(3):473-488
The torsional vibration generated during clutch engagement directly affects the shifting quality of automatic transmissions, where the noise source stems from both the clutch and the gear set. To predict the dynamical response and driveline oscillation, a comprehensive mathematical model of the vehicle powertrain equipped with automatic transmission is developed with consideration of nonlinearities in the clutch and the planetary gear set. For the clutch, the dynamics of stickslip is described for the transition between the slipping to locked states. The gear backlash model is used to analyze the rattle noise of the planetary gear set. Based on extensive powertrain simulations for the clutch engagement process, the magnitude of vibration propagation in the driveline are predicted to identify the primary factors of noise generation. 相似文献
208.
Shipping companies’ crucial need for cost cutting is their main motive for recruiting seafarers of various nationalities and
formulating multicultural teams on board ships. This paper seeks to examine ways of dealing with cultural issues by being
a socially responsible company. The main point of the research is to examine how managing multicultural crews is related to
the shipping companies’ and the industry’s social responsibility. An extensive literature review on the cultural issues of
maritime manpower, with a focus on the working and living conditions and the management of shipping crews, reveals important
aspects of the subject. This analysis is enriched with qualitative data from an on-board case study, and from a survey among
crew managers and manning agents. Results show that managing multicultural human resources in a socially responsible manner
requires socially acceptable behaviour towards seagoing labour from all the industrial actors. 相似文献
209.
Marc J.I. Gaudry Michael J. Wills 《Transportation Research Part B: Methodological》1979,13(2):155-166
This paper compares dogit and logit specifications of market share models, taking into account the possibility that conclusions might depend on transformations of the explanatory variables of these models. Parameter estimates are obtained both for a time-series urban transit mode of payment model and for a cross-sectional intercity mode choice model. It is demonstrated, using current maximum likelihood techniques extended to take multiple-order autocorrelation of the residuals into account, that the dogit specification is at least equal to, and sometimes clearly superior to, the logit specification irrespective of transformations of explanatory variables. 相似文献
210.
Michael S. Roe 《WMU Journal of Maritime Affairs》2008,7(1):263-279
This paper examines where problems of shipping policy jurisdiction between international, supra-national and national levels have occurred. These range across the issues of public goods — safety, security and environment— and show up inadequacies in the current shipping policy-making processes. New frameworks — commonly termed “polycentric governance” and “multi-level governance”— sensitive to the complexities of the maritime industry and its associated political structure urgently need to be adopted. The paper is based upon research work recently carried out across the European Union supported by a number of publications and will include examples from Greece, the United Kingdom, Spain, France and also the new member states. Suggestions for improvements in policy-making structures will be made and recommendations put forward for consideration by policy-makers in the maritime sector at all jurisdictional levels 相似文献